



the same time afford a means of attachment for the span wires which aresecured to the eyes d2.

As will be apparent, the operation of the device is as follows: Atrolley wheel such as that represented at w, Fig. 4, moving along Vunderthe member A in the direction of the arrow, Fig. 1, will receive currentafter it passes from said member through the rim of the Wheel whichengages with a conducting strip b2 Which conducting strip acts as acontinuation of the section otherwise ending with the member A. At themoment the trolley wheel passes from one strip b2it contacts with theother strip b2 and hence is receiving current from the next section, andthis without causing undue sparking and in such a manner as to removethe liability of stopping at a dead point where no current could betaken.

l. The combination in a section insulator of conducting members, aninsulating member separating said conducting members and a conductorfromeach conducting member extending along a surface of said insulatingmember, substantially as set forth.

2. The combination in a section insulator of conducting members, aninsulating member Separating said conducting members and a conductorfrom each conductingmember extending in parallel lines along the lowerface of said insulating member but not overl-apping, substantially asset forth.

3. The combination in a section insulator of conducting members, aninsulating member separatingsaid conducting members providedwith groovesor channels, and a conductor from each conducting member located in saidchannels, substantially as set forth.

4. The combination in a section insulator of conducting members providedwith means of attachment for the trolley Wires, of an insulating memberseparating said conducting members and a conductor from each conductingmember extending along a surface of said insulating member,substantially as set forth.

5. The combination in a section insulator of conducting members providedwith means of attachment for the trolley wires and feed wires, of aninsulating member separating said conducting members and a conductorfrom each conducting member extending along a surface of said insulatingmember, substantially as set forth.

6. The combination in a section insulator of conducting members providedwith means of attachment for the trolley and feed wires, of aninsulating member provided with means for the attachment of the spanwires, said insulating member separating said conducting members and aconductor from each conduct'- ing member extending along a surfaceofsaid insulating member, substantially as set forth.

7. The combination in a section insulator of a strengthening strapsecured thereto bya bolt, said bolt being provided at each end with anut having an eye for the attachment of the span wires, substantially asset forth.

8. The combination in a section insulator of an insulating member B,provided with two conducting strips and conducting members forattachment of the trolley wires, and means of attaching said stripsrespectively to said conducting members, substantially as set forth.

This specification signed and witnessed this 11th day of August,-l893.

H. M, BROCKBANK.

Witnesses:

' W. H. JENNINGS,

GEO. GOODWIN.

